Average Bench: 62.3% (452nd of 848)

more Based on 465 user benchmarks.  Models: KINGSTON SKC300S37A120G, KINGSTON SKC300TS37A120G, KINGSTON KINGSTON SKC300S, KINGSTON SKC300S37A1, KINGSTON SKC300S37A120G, KINGSTON SKC300S

Above average average bench

The Kingston SSDNow KC300 120GB averaged 37.7% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. 4K Random Write Speed 71.8MB/s
Avg. 4K Random Read Speed 24MB/s

Good consistency

The range of scores (95th - 5th percentile) for the Kingston SSDNow KC300 120GB is 28.4%. This is a relatively narrow range which indicates that the Kingston SSDNow KC300 120GB performs reasonably consistently under varying real world conditions.


Avg. Sequential Write Speed 177MB/s
Avg. 4K-64Thread Read Speed 118MB/s

Average Bench

(Based on 465 samples)
Min Avg Max
325 Read 458 509
137 Write 177 218
160 Mixed 220 280
62.3% 285 MB/s
Min Avg Max
14.2 4K Read 24 34
35.4 4K Write 71.8 108
8.74 4K Mixed 15.3 22.3
94% 37 MB/s
Min Avg Max
22 DQ Read 118 223
54.1 DQ Write 143 204
7.65 DQ Mixed 35.7 62.7
53.2% 98.8 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest SSD (mainstream) averages a speed of 100%
80GB free
Firmware: 580ABBF0 Max speed: SATA 3.0 600 MB/s
Read 475
Write 178
Mixed 213
63% 289 MB/s
4K Read 37.9
4K Write 119
4K Mixed 16.7
142% 57.8 MB/s
DQ Read 37.3
DQ Write 98.4
DQ Mixed 4.76
22% 46.8 MB/s
65GB free
Firmware: 507KC4 Max speed: SATA 3.0 600 MB/s
Read 488
Write 172
Mixed 214
64% 291 MB/s
4K Read 34.8
4K Write 98.3
4K Mixed 14.7
124% 49.2 MB/s
DQ Read 37.2
DQ Write 116
DQ Mixed 48.8
45% 67.2 MB/s
30GB free
Firmware: 507ABBF0 Max speed: SATA 3.0 600 MB/s
Read 458
Write 157
Mixed 157
56% 257 MB/s
4K Read 30.5
4K Write 74.9
4K Mixed 18.8
110% 41.4 MB/s
DQ Read 182
DQ Write 169
DQ Mixed 46.6
70% 132 MB/s
47GB free
Firmware: 580A Max speed: SATA 3.0 600 MB/s
Read 478
Write 188
Mixed 236
66% 301 MB/s
4K Read 28.8
4K Write 63
4K Mixed 19.2
102% 37 MB/s
DQ Read 191
DQ Write 115
DQ Mixed 57.9
69% 121 MB/s
46GB free
Firmware: 507ABBF0 Max speed: SATA 3.0 600 MB/s
Read 315
Write 195
Mixed 205
53% 238 MB/s
4K Read 29.8
4K Write 54
4K Mixed 15.2
93% 33 MB/s
DQ Read 35.5
DQ Write 112
DQ Mixed 15.5
29% 54.2 MB/s
465 MORE »

 Market Share (See Leaders)

The number of benchmark samples for this model as a percentage of all 2,393,235 SSDs tested.


NeweggUS $79.9812 months ago.
AmazonUS $101.606 mins ago.
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Typical SSDNow KC300 120GB Builds (Compare 1,886 builds) See popular component choices, score breakdowns and rankings.
Gaming 62%
Desktop 73%
Workstation 56%

Motherboard: Asus Z97-K - $130

EDIT WITH CUSTOM PC BUILDER Value: 73% - Very good Total price: $928

Popular SSDNow KC300 120GB compatible motherboards:

How Fast Is Your SSD? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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Solid State Drive Rankings (Price vs Performance) March 2017 SSD Rankings.

Welcome to our consumer SSD comparison. We calculate effective speed based on real world performance then adjust by cost per GB to yield a value for money rating. Calculated values don't always tell the whole picture so we check them against thousands of individual user ratings. The customizable table below combines these factors and more to bring you the definitive list of top SSDs. Share your opinion by voting. [SSDrivePro]



Controller: SandForce SF2281. Flash Memory: Toshiba 19nm Toggle Mode.

One of the most power-efficient SSDs on the market...

Added 2 years ago.

848 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different SSDs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

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